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患者男，40岁，右上2缺失，余留牙无异常，咬合关系良好，要求做右上123非贵金属烤瓷桥修复，比色A3 。

烤瓷冠的冠边缘要求中，下列哪项是错误的 （）

A.冠边缘整齐

B.与基牙（或患牙）密合

C.无悬突

D.颈缘与基牙（或患牙）要留有粘固料所需的空隙

E.长短合适

答案

参考答案：D

单项选择题 A型题

可致老年人出现脱水、低血钾不良反应的药品是（）

A．甲基多

B．螺内酯

C．硝苯地平

D．氢氯噻嗪

E．格列齐特
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单项选择题

Pharming is a scamming practice in which malicious code is installed on a personal computer or server, misdirecting users to ___29___ Web sites without their knowledge or consent. Pharming has been called "phishing without a lure".

In phishing, the perpetrator sends out legitimate-___30___ e-mails, appearing to come from some of the Web’s most popular sites, in an effort to obtain personal and financial information from individual recipients. But in pharming, larger numbers of computer users can be ___31___ because it is not necessary to target individuals one by one and no conscious action is required on the part of the victim.In one form of pharming attack, code sent in an e-mail modifies local host files on a personal computer. The host files convert URLs into the number strings that the computer uses to access Web sites. A computer with a compromised host file will go to the fake Web site even if a user types in the correct Internet address or clicks on an affected ___32___ entry. Some spyware removal programs can correct the corruption, but it frequently recurs unless the user changes browsing ___33___

29（）

A.few 

B.fraudulent 

C.normal 

D.structured
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